描述
鎮(zhèn)海9EE燃?xì)庹羝?lián)合循環(huán)機(jī)組由兩臺(tái)GE公司生產(chǎn)的MS9001E燃?xì)廨啓C(jī),兩臺(tái)余熱鍋爐和汽機(jī)組成的聯(lián)合循環(huán)機(jī)組。其汽機(jī)凝汽器采用海水冷卻,循環(huán)水泵房共設(shè)有兩臺(tái)1000kwYZCK-11型循環(huán)水泵控制系統(tǒng),該系統(tǒng)主要以microPLC控制器為核心,按工藝對(duì)循環(huán)水泵,循泵出口蝶閥,旋轉(zhuǎn)濾網(wǎng)和沖洗水泵的中間邏輯進(jìn)行處理,實(shí)現(xiàn)較為簡(jiǎn)單的自動(dòng)控制,故障檢測(cè)及聲光報(bào)警??刂品绞綖闉镻LC程控硬手操,無(wú)工控機(jī)。
由于原設(shè)計(jì),設(shè)備選型的原因,自投運(yùn)以來(lái)故障較多。隨著設(shè)備運(yùn)行年限的增長(zhǎng),故障趨于頻繁,跳泵故障屢次出現(xiàn),嚴(yán)重影響燃機(jī)的正常運(yùn)行。主要問(wèn)題如下:
(1)電源設(shè)計(jì)不可靠,易引起循泵冷卻水壓低跳循泵;
(2)循泵出口蝶閥程控不完善,易引起控制回路故障,失電,蝶閥不能自保而關(guān)閉,聯(lián)動(dòng)循泵跳閘;
(3)報(bào)警系統(tǒng)不完善,無(wú)報(bào)警記錄與歷史趨勢(shì),難以故障分析;
(4)設(shè)備老化,操作復(fù)雜,對(duì)設(shè)備運(yùn)行的監(jiān)控及事故的快速反應(yīng)和處理不利。
這些問(wèn)題的存在嚴(yán)重影響燃機(jī)機(jī)組的安全正常運(yùn)行,不利于機(jī)組的穩(wěn)發(fā)滿發(fā),有必要對(duì)整個(gè)控制系統(tǒng)加以改造。
2系統(tǒng)組成
產(chǎn)品廣泛應(yīng)用于:電力、石油、礦井提升、港口、供熱、燃?xì)?、供水、污水處理、冶金、造紙、紡織、化工、水利等現(xiàn)代化工業(yè)領(lǐng)域!
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主營(yíng):世界知名品牌的PLC、DCS系統(tǒng)備件模塊
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結(jié)構(gòu)的zui現(xiàn)代化的容錯(cuò)控制器。
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